Rate Chart for Impregnating Fertilizer with DuPont™

VELPAR® L

Fertilizer

 

VELPAR® L Rate Per Acre

Rate/Acre

2 Pints

3 Pints

4 Pints

6 Pints

250 pounds

16 pts/ton

24 pts/ton

32 pts/ton

48 pts/ton

300 pounds

13.4 pts/ton

20 pts/ton

26.8 pts/ton

40.2 pts/ton

350 pounds

11.4 pts/ton

17.2 pts/ton

22.8 pts/ton

34.2 pts/ton

400 pounds

10 pts/ton

15 pts/ton

20 pts/ton

30 pts/ton

450 pounds

8.8 pts/ton

13.2 pts/ton

17.6 pts/ton

26.4 pts/ton

For rates other than those listed, use the following formula to calculate the amounts of VELPAR® L to be impregnated per ton of dry fertilizer.

Pints

 

 

 

Pints

VELPAR® L X

 

2000

 

= VELPAR® L Per

Lbs Fertilizer Per Acre

Per acre

Ton of Fertilizer

 

 

 

APPLICATION

Uniform application of VELPAR® L-impregnated dry fertilizer is essential for satisfactory weed control. Accurate calibration of the application equipment is essential for uniform distribution to the surface. The recommended method of application is to apply 1/2 the recommended rate and overlap 50%. This results in the best distribution pattern.

USE PRECAUTIONS - ALFALFA

Best results are obtained when 1/2–1 inch of rainfall or sprinkler irrigation occurs within two weeks after application, when soil is moist at time of application, and when weeds have not germinated or are less than 2 inches in height or diameter. Heavy rainfall or excessive irrigation after application may result in crop injury or poor performance of the herbicide.

On soils high in organic matter (greater than 5%), the effectiveness of VELPAR® L can be significantly reduced and weed control may be unsatisfactory.

Crop injury, including mortality, may result in fields with restricted root growth due to nonuniform soil profiles such as gravel bases and clay lenses.

Crop injury may result if hot weather, mid-to-high 90 degree range or higher, occurs within a few days after application.

Do not apply to snow-covered or frozen ground.

Since the effect of VELPAR® L on alfalfa varies with soil conditions, uniformity of application, and environmental conditions, growers should limit their first use to small areas.

If abnormally dry conditions exist following application, restrict the first irrigation to no more than 1/2 acre inch of water.

Temporary yellowing of alfalfa may occur following VELPAR® L applications.

Treat only stands of alfalfa established for one year or for one growing season (except in California), provided:

–The alfalfa stand has a well developed tap root structure that is at least 10 inches in length (0.25 inch diameter

below the crown) throughout the field and the crop is healthy, vigorous, and not under stress from weather conditions, low fertility, insects or disease damage.

–In areas with shorter growing seasons, such as, higher elevations, adequate alfalfa tap root growth may not occur and especially when alfalfa is grown together with a cover or nurse crop. If an adequate tap root is not present, delay application of VELPAR® L until the alfalfa has gone through a minimum of two growing seasons.

In California, fall planted alfalfa may be treated in the following winter months with VELPAR® L at 1 to 2 pints per acre (use higher rate for fine textured soils) provided:

-alfalfa root growth exceeds 6 inches in length

-vegetative top growth of alfalfa has lateral development of secondary growth

-alfalfa is healthy and vigorous, not growing under stress from insect, disease, winter injury or other types of stress.

Injury may result to alfalfa plants that fail to meet these growth criterion listed above.

Do not use VELPAR® L on seedling alfalfa, alfalfa-grass mixtures, or other mixed stands as injury may result to the seedling alfalfa or companion crop.

Do not add a surfactant to VELPAR® L when treating non- dormant alfalfa.

Do not use VELPAR® L on gravelly or rocky soils, exposed subsoils, hardpan, sand, poorly drained soil, or alkali soils.

SEED ALFALFA (CALIFORNIA ONLY) ADDITIONAL USE PRECAUTIONS

Do not use VELPAR® L on fields with sandy loam or loamy sand soils having less than 1% organic matter.

Do not exceed 2 pints per acre on fields with sandy loam or loamy sand soils having 1–2% organic matter.

Do not exceed 2 pints per acre on seed alfalfa that has been established for only one growing season.

BLUEBERRY

HIGH BUSH BLUEBERRIES

VELPAR® L is recommended for control of certain herbaceous and woody weeds in established high bush blueberry fields.

APPLICATION INFORMATION

VELPAR® L may be applied to high bush blueberries that have been established for 3 or more years. Apply VELPAR® L in the spring before blueberry leaf emergence. Direct the spray solution towards the soil and weeds.

Using calibrated ground spray equipment, make the application in sufficient water to provide thorough and uniform coverage to the treated area (usually 20 gallons per acre). Shut off spray booms when starting, turning, slowing or stopping, or injury to the crop may result.

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DuPont Authentication H - 65396 manual Blueberry, USE Precautions Alfalfa, High Bush Blueberries, Application Information

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